Fuse.



H. H. McLAUCHUN. v

MISE.

Armenian mw :uns 29. 191s.

1 ,1 98,364.' Patented Sept 12, 1,916.

HENRY` H. MCLAUCHLIN, OF KNOXVILLE, TENNESSEE.

FUSE.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application led J' une 2 9, 1915. Serial N o. 37,047.

To all whom' t may concern Be it known that I, HENRY H. MCLAUCH- LIN, acitizen of the United States, residing at Knoxville, in the county oflKnox and State of Tennessee, have invented new and useful Improvementsin Fuses, of which the following is a specification.

This invention relates to improvements in fuses and has particularapplication to a fuse of the cartridge type. I

In carryingv out the present invention, it is my purpose' to provide acartridge fuse wherein the fusible element may be readily and quicklyinspected whenever desired so that thecondition of such element may bedetermined and wherein the fusible element may be quickly andconveniently replaced whenever necessary.

It is also my purpose to provide a cartridge fuse wherein the componentparts may be readily disassembled whenever it is desired to replace thefusible element and wherein the parts will be so arranged andlcorrelated as to reduce the possibility of derangement to a minimum.

Vith the above and other objects in View, thevinvention consists in theconstruction, combination and arrangement of parts hereinafter set forthin and falling within the scope of the claim.

In the accompanying drawing, Figure 1 is a View in side elevation of acartridge fuse J constructed in accordance with the present invention.Fig. 2 is a longitudinal sectional view therethrough. Fig. 3 is a crosssec-- tionalv view through the same. Fig. 4 is a perspective view of oneofthe fuse holding jaws removed from the cartridge. Fig. 5

' is a perspective view of the shell. Fig. 6 is a view in side elevationshowing a modified form of cartridge. Fig.`7 is a perspective view of amodified form of fusible element.

Referring now to the drawing in detail, 1 designates a shellsemicircular in cross section .and having the endsthereof formed withcircular retaining bands 2 coaxial with the shell 1. Y n,

3, 3 indicate the fuse holders, each comprising Ia circular body 4formed with a threaded bore 5 and having one end portion formed with atransverse way 6 and a slot 7 contiguous to the way and opening onto theadjacent extremity of the body. The: side walls of the slot 7, at oneend of the latter, are cut away slightly as at 8 to provide a recess,while formed on the outer surface of the body 4 at opposite sides of theslot 7 are lugs 9 forming diametrically opposed Shoulders 10 andabutments 11; The bodies 44 of the holders 3 are placed in the shell 1and the shoulders 10 engage the longitudi- V nal edges of the shell,while the ends of the bodies remote from the lugs 9 are adapted 'toslide into the bands 2 and as the bodies tration with the open side ofthe shell and" loosely surrounding the ends of the sleeve 12respectively are caps 14 formed with inwardly projecting threaded studs15 engaging in the bores 5 in the bodies of the respective holders so asto hold the holders at the respective endsof the shell l and preventlongitudinal movement of the sleeve 12 along the shell.

16 designates a fusible element having the end portions thereof bent atright ,angles to the central portion and disposed within the ways 6 inthe respective holders 3, the central portion of the fusiblel element.at the juncture with the bent ends engaging the recessesiformed by thecut-away portions 8.

In practice, the holders are placed in the shell and the ends of thefusible element disposed within the ways in the holders, as justdescribed. The sleeve 12 is now slipped over the shell and the slot inthe sleeve .brought into registration with the open side of the shell.The lingers of the operator may be passed through the slot in the openside of the shell and engaged with the holders to hold the latter in therespective ends of the shell. Caps are now placed upon the ends of thesleeve and the studs 15 threaded into the bores in the holders, theoperators fingers holding the holders in position to receive the studs.As thestuds are threaded into the bores iny the respective holders theinner ends of such studs bind against the right angular ends of thefusibleelement, thereby securely holding the latter within the shellWhile the caps are drawn onto the ends of the sleeve to preventlongitudinal movement of the sleeve relatively to the kshell and whenthe caps are tightened the sleeve is held against rotary movement varound the shell. When desired, the sleeve may be rotated'around theshell to move the slot 13 in the sleeve into and out of registrationwith the open side of the shell.

In the modified form of cartridge shown in Fig. 6, the tubular sleeve l2entirely surrounds the shell and is minus the slot 13 and when it isdesired to renew the fusible element, the caps are removed from the endsof the sleeve and the shell Withdrawn from the sleeve.

The fusible element shown in Fig. 7 is in the form of a link and iscomposed of suitable fusible metal shaped to form a flat ribbon or link.link are thickened to form transversely extendi-ng lugs 17. In the useof this link or ribbon, the lugs 17 are inserted in the Ways 6 in therespective holders, while the portions of the ribbon adjacent to thelugs lie Within the slots 7.

lVhile I have herein shown and described certain preferred forms of myinvention by Way of illustration, I wish it to be understood that I donot limit or confine myself to the precise details of constructionherein described and delineated, as modification The ends of this ribbonorand variation may be made-Within ythe scope of the claim withoutdeparting from the spirit of the'invention.

I claim:

A cartridge fuse comprising a shell having an open side, fuse holders insaid shell adjacent t0`the respective ends thereof, a

sleeve surrounding said shell and having an elongated slot formedtherein and movable to bring said slot into and out of registration withthe open side of said shell, caps `closing the ends of said sleeve andshell,

a fusible element Within said shell and hav- -ing the ends thereofengaged in said holders,

HENRY H. MULAUCHLIN.

Witnesses:

M. A. OLDES, J. R. SMrrI-r.

